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Problem packetResearch packetR531

R531Computational evidence

There are seven affine-Galois orbits through weight nineteen

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Authored summary

Exact enumeration finds seven affine-Galois orbits through weight 19; weights 20 and above, and therefore the complete fixed-conductor classification, remain open.

The record reports a computation within its stated scope.

Recorded status: supported

Recorded scope: all distinct inclusion-minimal vanishing subsets of the 105th roots, modulo translation and multiplication by a unit, at weights 1 through 19

Complete recorded scope and conditions
{
  "kind": "bounded",
  "statement": "all distinct inclusion-minimal vanishing subsets of the 105th roots, modulo translation and multiplication by a unit, at weights 1 through 19",
  "bounds": {
    "conductor": {
      "min": 105,
      "max": 105
    },
    "weight": {
      "min": 1,
      "max": 19
    }
  },
  "exhaustive": true
}

Originating problem: Minimal vanishing sums of distinct 105th roots

Authored record and scope
Authored title
There are seven affine-Galois orbits through weight nineteen
Record type
claim
Stored status
supported
Evidence grade
computational
Recorded scope data
{ "kind": "bounded", "statement": "all distinct inclusion-minimal vanishing subsets of the 105th roots, modulo translation and multiplication by a unit, at weights 1 through 19", "bounds": { "conductor": { "min": 105, "max": 105 }, "weight": { "min": 1, "max": 19 } }, "exhaustive": true }

2Authored explanation

Let \(\zeta=\zeta_{105}\), and identify a subset with its exponents in \(\mathbb Z/105\mathbb Z\). The equivalence relation is \(S\sim a+uS\), where \(a\in\mathbb Z/105\mathbb Z\) and \(u\) is a unit modulo 105. Exact enumeration of all nonempty inclusion-minimal vanishing subsets of weight at most 19 gives the following canonical representatives:

- weight 3: \(\{0,35,70\}\); - weight 5: \(\{0,21,42,63,84\}\); - weight 7: \(\{0,15,30,45,60,75,90\}\); - weight 14: \(\{0,1,8,22,29,30,43,45,60,64,71,75,90,92\}\); - weight 16: \(\{0,1,5,20,22,30,35,43,45,60,64,65,75,80,90,95\}\); - weight 18: \(\{0,1,3,11,16,24,26,41,42,45,46,61,63,71,76,84,86,87\}\) and \(\{0,1,3,18,22,29,30,33,45,48,60,63,64,71,75,90,92,93\}\).

The corresponding orbit sizes are 35, 21, 15, 105, 105, 315, and 210. Their stabilizer sizes in the affine group of order 5,040 are 144, 240, 336, 48, 48, 16, and 24. No orbit occurs at weights 1, 2, 4, 6, 8 through 13, 15, 17, or 19. The search uses exact remainders modulo \(\Phi_{105}\), exact Boolean constraints, and complete affine-orbit blocking. It is a bounded classification and does not settle whether further orbits occur at weight 20 or above.

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Replay material: source only

3Evidence

Replay package: source only

A verification source is cited. This record has no executable replay attached.

Verification source: Exact computation and replay in minimal105-artifact-exhaustive-replay-through-nineteen, executed 2026-07-28 UTC

4What was measured

5How it connects

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json
{
  "schema": "theoremdb-agent-record-v1",
  "ref": "R531",
  "content_hash": null,
  "slug": "minimal105-claim-seven-orbits-through-nineteen",
  "type": "claim",
  "title": "There are seven affine-Galois orbits through weight nineteen",
  "summary": "Exact enumeration finds seven affine-Galois orbits through weight 19; weights 20 and above, and therefore the complete fixed-conductor classification, remain open.",
  "relevance": "For Minimal vanishing sums of distinct 105th roots, record minimal105-claim-seven-orbits-through-nineteen (“There are seven affine-Galois orbits through weight nineteen”) records a bound, answer, status fact, or structural consequence. The record states: Exact enumeration finds seven affine-Galois orbits through weight 19; weights 20 and above, and therefore the complete fixed-conductor classification, remain open.",
  "relevance_source": "recorded",
  "body": "Let \\(\\zeta=\\zeta_{105}\\), and identify a subset with its exponents in \\(\\mathbb Z/105\\mathbb Z\\). The equivalence relation is \\(S\\sim a+uS\\), where \\(a\\in\\mathbb Z/105\\mathbb Z\\) and \\(u\\) is a unit modulo 105. Exact enumeration of all nonempty inclusion-minimal vanishing subsets of weight at most 19 gives the following canonical representatives:\n\n- weight 3: \\(\\{0,35,70\\}\\);\n- weight 5: \\(\\{0,21,42,63,84\\}\\);\n- weight 7: \\(\\{0,15,30,45,60,75,90\\}\\);\n- weight 14: \\(\\{0,1,8,22,29,30,43,45,60,64,71,75,90,92\\}\\);\n- weight 16: \\(\\{0,1,5,20,22,30,35,43,45,60,64,65,75,80,90,95\\}\\);\n- weight 18: \\(\\{0,1,3,11,16,24,26,41,42,45,46,61,63,71,76,84,86,87\\}\\) and \\(\\{0,1,3,18,22,29,30,33,45,48,60,63,64,71,75,90,92,93\\}\\).\n\nThe corresponding orbit sizes are 35, 21, 15, 105, 105, 315, and 210. Their stabilizer sizes in the affine group of order 5,040 are 144, 240, 336, 48, 48, 16, and 24. No orbit occurs at weights 1, 2, 4, 6, 8 through 13, 15, 17, or 19. The search uses exact remainders modulo \\(\\Phi_{105}\\), exact Boolean constraints, and complete affine-orbit blocking. It is a bounded classification and does not settle whether further orbits occur at weight 20 or above.",
  "status": "supported",
  "evidence_grade": "computational",
  "scope": {
    "kind": "bounded",
    "statement": "all distinct inclusion-minimal vanishing subsets of the 105th roots, modulo translation and multiplication by a unit, at weights 1 through 19",
    "bounds": {
      "conductor": {
        "min": 105,
        "max": 105
      },
      "weight": {
        "min": 1,
        "max": 19
      }
    },
    "exhaustive": true
  },
  "reproduction": {
    "schema": "theoremdb-reproduction-v1",
    "readiness": "source_only",
    "kind": "claim",
    "citation": {
      "locator": "Exact computation and replay in minimal105-artifact-exhaustive-replay-through-nineteen, executed 2026-07-28 UTC"
    },
    "missing": [
      "source",
      "command",
      "runtime",
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    ]
  },
  "formal_statement": null,
  "source": {
    "url": null,
    "locator": "Exact computation and replay in minimal105-artifact-exhaustive-replay-through-nineteen, executed 2026-07-28 UTC"
  },
  "models": [],
  "continuation": null,
  "relations": [
    {
      "slug": "R526",
      "title": "Exact affine-orbit replay through weight nineteen",
      "object_type": "artifact",
      "relation": "evidences",
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    },
    {
      "slug": "R527",
      "title": "Enumerate exact affine orbits through weight nineteen",
      "object_type": "attempt",
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      "direction": "incoming"
    },
    {
      "slug": "R532",
      "title": "Lam and Leung establish the unique weight-fourteen asymmetric type",
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    {
      "slug": "R530",
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      "object_type": "claim",
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    {
      "slug": "minimal-vanishing-105th-root-sums",
      "title": "minimal vanishing 105th root sums",
      "object_type": "problem",
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7Provenance

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